Rock Layers (Geologic Time)

Front

What is the process called when sediment is moved around by wind or water?

Back

Erosion

Front

What do paleontologists study?

Back

Fossils

Front

What type of rock is formed from sediment compacted by the weight of layers above?

Back

Sedimentary rock

Front

What are evidence of past life called?

Back

Fossils

Front

What type of dating do scientists use to determine the exact age of something?

Back

Absolute dating

Front

What is the term for the layers of rock that are formed over time?

Back

Rock layers

Front

What is the study of Earth's physical structure and substance called?

Back

Geology

Front

What is the term for the process that breaks down rocks into smaller pieces?

Back

Weathering

Front

What are the remains or traces of ancient organisms called?

Back

Fossils

Front

What type of rock is formed from the alteration of existing rock due to heat and pressure?

Back

Metamorphic rock